[Deadbird], though, is bucking that trend with an EQ display stomp box that fits neatly on his pedal board. [Deadbird]’s build isn’t a graphic equalizer that can change the volume of ...

We’re guessing the graphic EQ is provided by an MSGEQ7 chip, and the inverters themselves are powered through the Mega’s PWM pins. It’s a lot like an IN-9 Nixie graphic EQ, only much ...

Tone Sculptor combines preamp overdrive and graphic EQ in a single box with six EQ sliders ... All four pedals include an illuminated graphic waveform display instead of a typical on/off LED.